How to add a widget to QMainwindow in qt creator

[mrjj]

Hi
Who has to call ?
You can use addTab to add a tab
and u show() to show it

Do you have the tabwidget in UI file?
You from button you just add tab.
Tab can be any widget you like.

[veera]

Hi ,
No ....need to call in the run time There is Qmainwindow ui in that i have implemented there is a open pushbutton using style sheet ,if i press its has to open qtabwidget after words .....i will show my tableview in that ,its already connected with database server ..........this is my implementation idea....

[mrjj]

@veera

ok if you new a tabwidget with no parent, it should become window
then you just a page to it and it should be it

[veera]

how to add and open the page after click the button?

[veera]

if you don't mind please elaborate the concepts.....

[mrjj]

@veera

I think i dont understand what you are asking.

void MainWindow::on_pushButton_2_released()
{
  QTabWidget* tw = new QTabWidget(nullptr);
  tw->addTab(new QPushButton("test"),"MYTAB");
  tw->show();
}

Will show a tabwidget as window with one Qpushbutton as tab

Note. just sample. it will make new each time pushed and not delete it.
A dialog would work better.

[veera]

sorry the main thing is that it has to open as a tab attached to main window ......

[veera]

/QTabWidget *tabWidget = new QTabWidget;

/*QWidget *tab1 = new QWidget;
QWidget *tab2 = new QWidget;
QWidget *tab3 = new QWidget;
setCentralWidget(tabWidget);
tabWidget->insertTab(0,tab1,"Table_1 Data");
tabWidget->insertTab(1,tab2,"Table2 data");
tabWidget->insertTab(2,tab2,"Table3 data");

// tabWidget->tabRemoved(0);
// ui->tabWidget->removeTab(0);
tabWidget->removeTab(2);
Here i manually creating the widgets there are attaching with QMainwindow ....I dont want to create manually need to dynamically open it need to attached to Qmainwindow.......

[mrjj]

@veera said in How to add a widget to QMainwindow in qt creator:

I dont want to create manually need to dynamically open it

But using addTab or insertTab IS dynamically ???????
as versus just adding them in Designer.

[veera]

okay fine how about the display of the tabs need join to main window how we can achieve it ?

[mrjj]

@veera

• display of the tabs need join to main window

the tabs are widgets. you can add any the widgets to main window if you use a layout or another tabwidget.

if you need them as tab still, then another tabwidget is needed.

else im not sure what you mean by "join"

[veera]

okay thanks for the support i will try now ...

[mrjj]

@veera

Hopefully it answered what you asked.
I not sure what your real issue was, what you have tried and what didnt work :)

[veera]

Hi In the screen below image I have mentioned like this type in one mainwindow button need to implement i could not understand how to start ........please help me

[jsulm]

@veera Sorry, it is really hard to understand you. Isn't this just a QTabWidget containing another QTabWidgets in its tabs?

[veera]

No it should have some control if you click it it has to open it as a tab need to open as you can see in the image i have uploaded?

[jsulm]

@veera You can either use real buttons or qtabwidget containing other qtabwidget and react on tab switch using
http://doc.qt.io/qt-5/qtabwidget.html#currentChanged
But I don't really understand what you're asking for...

[veera]

I have shown in the image .....i dont need full implementation i just need a sample of the image with only one control needed thats it.

[veera]

single menus control with whenever if you click means it has to open a page or tab with (close X) on it ......thats it.

[jsulm]

@veera What is exactly the problem? You can just connect a slot to clicked() signal of a push button (if you use a push button) and show what ever you need in that slot.